Combing machine



' c. GEGAUFF COMBING MACHINE July 28, 1931.

Filed Nov; 14. 1929 a m FR m .wo J T 6N 4% PUV. 5 am L R A H. C

Patented July 28, 1931 l uurrsl) STATES CHARLES GEGAUFF, OF MULHOUSE, FRANCE COMBING MACHINE Application filed November 14, 1929, Serial No. 407,112, and in France November 21, 1928.

The present invention relates to combing machines, and more particularly to the socalled Heilmanns or French combing machines; the invention is particularly useful in the treatment of textile material havmg fibres of great length.

One object of the invention is to devise means whereby the combed tuft is subjected to an upsetting between the top comb and the feeding and-retaining means for the fibrous material during the drawing off, whereby the cleanliness. of the comber material is materially increased. i Another object of the invention isto devise means whereby the top comb lsfimparted a swinging motion with respect to the lap. p

, Further objects of the invention Wlll be set forth in the following description, hav- 0 ing reference to the appended drawings,

wherein:.

n Fig. 1 is a diagrammatic sectional view of a portion of'a French comblng machine modified according to the invention.

Figs. 2 and 3 are similar views, showing modifications.

In all figures, similar parts are denoted by like reference numerals. V p I l According to the type. of mechanism in use, carriage 1 may be controlled by. an arm 10, adapted to swing about a fixed axis 12.

The top nipper 3 is carried by an arm 13 pivoted at 14 upon carriage 1. About a pin 9 of carriage 1 is pivoted a control arm 15, whose end is pivoted to a lever 37 connected at its opposite end with the gill box 2. At 20 is also pivoted a lever 19 carrying a set of fallers 21. On the same pivot 20 is also mounted an arcuated lever which is connected at 32 by means of a link 33 with a pivot 34on the carriage 1.

On the arcuated lever 30 is pivoted at 31 a lever 17 carrying the top comb 4 and a roller 23 adapted to move upon a stationary plane surface 24.

The other parts of the machine have been omitted, since they are well known in the art and are not modified by the invention.

In this type of machine, the drawing Ofi of the fibres isproduce'd by the rotation of place between the top comb 4 and gill box 2 made for altering at will the difference bethe detaching rollers 5, 6 (and optionally of leather band?) while the lap is retained by the set of fallers 21 and the top comb 4, a progressive approaching motion taking together with the lap on the one hand and the detaching rollers 5, 6 on the other hand.

In the knownmachines, the distance between the needles of the top comb 4 and those of the gill box 2 is constant during the drawing off or detaching operation, thus opposing to any variation of this distance during the detaching operation. v

The ob ect of the present invention is to provide means whereby the distance between the needles ofthe top comb4 and those of the gill box 2 is progressively reduced durmg the. detaching operation, for upsetting the tuft. V

It will be seen that the pivotal motion of control arm 15 about 9.t0 the right for example will cause a displacement of greater amplitude of gill box 2 than of top comb 4, due to the converging direction of arm 15 and link 33 upwardly. This motion thus produces an upsetting of the tuft between the top comb and the gill box; the progress ve reduction in the distance between both may reach one-tenth to one-fourth the feeding stroke, that is l to 3 millimetres, according to thefibers under treatment.

Experience has proved that the cleanliness of the combed material is thus materially improved, for a given proportion of combed waste. This effect may be explained by reasonof the reduction in the feeding stroke of the top comb, subsequent to the reduction in the distance thereof to the gill box, whereby the top comb is caused to penetrate the tuft in a region farther from the nip of the nippers 1, 3,1 that is in a region where the tuft iscleaner.

In the device of Fig. 1, provision is also tween the strokes of top comb 4 and gill 6 box 2. For this purpose, member 30 is rovided with holes 35, 36, inwhich thepivot pin of link 33 may be inserted. .When link 33 is pivoted at 35, it is parallel with arm 15, whereby the strokes of top comb4 and a link 50 at 51.

gill box 2 are equal. WVhen link 33 is pivoted at 36, the difference in the strokes is maximum.

Other means may be devised for carrying out the invention, as shown for example in Figs. 2 and 3. r

In Fig. 2, arm is replaced by a member pivoted at 9 to carriage 1 and at 41 to levers 19 and 37, as in Fig. 1, and having a flat or curved cam surface 42. The end 43 of lever 17 is pivoted to, a link 44, pivoted at 45 to carriage 1 and having a roller 46 adapted to roll over cam surface 42. Due to this arrangement, the rotation of member 40 moves top comb 4 through a smaller stroke than gill box 2. Moreover, the inclination of top comb 4 is somewhat, varied, which improves the drawing off and increases the efiiciency.

Fig. 3 shows a further modification of the invention, wherein lever 17 is pivoted to Said link is pivoted at ,52 to carriage 1. Rigid with arm 15 (that is, keyed also to shafti9), is an arm 54, pivoted to a link 53, pivoted to link 50 at 55. Arm

15 controls the motion of gill box 2 toward the detaching rollers during the" operation of drawing off; This forward motion of the gill box produces a substantially.- vertical motion of pivot axis 51 of lever 17,and, since roller 23 rests on surface 24, which is stationary during the operation of drawing off and is substantially straight in this region, the forward motion of the needles of the top comb 4 is slower than that of gill-.

box 2, thus affordingthe advantage of the invention above explained. I

In this construction, the. relative strokes of the needles of the top comb and of the needles of the gill-box may also be readily varied at will. F or this pnrpose, link is provided with further holes 56, 57, in which the pivot pin of, link 53. may be engaged. Hole 57 corresponds to an. equal stroke ofmembers 2 and 4 and hole 56 to the minimum relative strokev of top comb 4.

In this example,'as in Fig. 2, the inclination of the needles of the top comb is varied during the operation of drawing off, that is during the progressive forward motion, and experience has proved that this effect is useful and adds to the former.

' The invention may be 'applied to other types of machines; for example, in certain combing. machines, no relative motion takes place during the operation of drawing off between the gill box 2 and the nippers 1, 3, the nippers and gill-box moving bodily to- Ward the detaching rollers 5, 601* vice-versa; in such machines, the progressive approaching motion between the needles of the top comb and the needles of the gill-box would be. obtained with mechanisms similar to thosev above described.

' H ng n sc ibed y in tion, Wha

I claim as new and desire to secure by Letters Patent is:

1. In a combing machine, lap retaining means, lap nipping means, tuft detaching means, a top comb, and means operatlvely connecting said lap retaining means w th said top comb for progressively reducmg their mutual distance only in the drawing off motion of said detaching means with respect to said lap retaining means, whereby the lap is upset between said lap retaining means and said top comb.

2. In a combing machine, lap retaining means, lap nipping means, tuft detaching means, a top comb, and means operatlvely connecting said lap retaining means with said .top comb for progressively reducing their mutual distance only in the drawing off motion of said detaching means and for simultaneously imparting an oscillatory ma,

of, only inthe drawing off motion of said detaching means with respect to said lap retaining means, whereby the. lap is'upset bet en d lap taini g m s a a top mb- 4. In a combing machine, tuft detaching means, a. carriage, lap retaining means guided on said carriage, a control member for said lap retaining means, a top comb and an operative. connection between said control member and said' top comb for. progressively reducing the distance between said lap retaining means and said top comb, only in the drawing off motion of said detaching means with respect to said lap retaining means, whereby the lap is upset between said lap retaining means and said top comb.

5. Ina combing machine, tuft detaching means, a carriage, lap retaining means guided on said carriage, a control member pivoted to said carriage for controlling said lap retaining means, a top comb, means in-- eluding a link for operatively connecting said top comb to said carriage, and means for operatively connecting said top comb with said control member, whereby said; top comb is imparted a smaller stroke than said lap retaining means duringthe drawing ofi' motion of said detaching means only. I

6, In a combing machine, tuft detaching means, a carriage, lap retaining. means guided on said carriage, a'control member r vet d. tQ. sai a r age r on lling. a a ta n ae' m an a p Q b. a nk pivoted to said carriage, and an arcuate member pivoted to said control member, to said top comb and to said link, whereby said top comb is imparted a smaller stroke than said lap retaining means, during the drawing off motion of said detaching means only.

7. A combing machine as claimed in claim 6, comprising a number of fulcrums on said arcuate member for connecting said link with the latter in selective positlons.

8. In a combing machine, tuft detaching means, a carriage, lap retaining means guided on said carriage, a control member pivoted to said carriage for controlling said lap retaining means, a top comb, a link for connecting said top comb with said carriage, a roller carried by said link and a raceway on said control member cooperating with said roller, whereby said top comb is imparted a smaller stroke than said lap retaining means, during the drawing off motion of said detaching means only.

9. In a combing machine, tuft detaching means, a carriage, lap retaining means guided on said carriage, a control member pivoted to said carriage for controlling said lap retaining means, a top comb, a link for connecting said top comb with said carriage, and a set of levers for connecting an intermediate point of said link. with said control member, whereby said top comb is imparted a smaller stroke than said lap retaining means, during the drawing off motion of said detaching means only.

10. In a combing machine, tuft detaching means, a carriage, a top nipper pivoted to said carriage, a roller on said top nipper, a fixed substantially straight surface coacting with saidroller, lap retaining means guided on said carriage, a control member pivoted to said carriage for controlling said lap retaining means, a top comb, means including a link for operatively connecting said top comb to said carriage, and means for operatively connecting said top comb with said control member, whereby said top comb is imparted a smaller stroke than said lap retaining means, during the drawing ofi' motion of said detaching means only. i

In testimony whereof I have signed my name to this specification.

CHARLES GEGAUFF. 

